<<<<<<< HEAD
#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
#include<map>
#include<algorithm>
using namespace std;
map<int, int> mp;
int main()
{
	int t;
	cin >> t;
	while (t--)
	{
		int n;
		cin >> n;
		while (n--)
		{
			int x;
			cin >> x;
			mp[x]++;
		}
		int maxx = 0;
		for (auto v : mp)
		{
			maxx = max(maxx, v.second);
		}
		int cnt = 0;
		int k = 0;
		for (auto v : mp)
		{
			if (v.second == maxx)
			{
				cnt++;
				if (cnt == 1)
					k = v.first;
			}
		}
		if (cnt == 1) cout << k << endl;
		else cout << "Nobody" << endl;
		mp.clear();
	}
	return 0;
=======
#define _CRT_SECURE_NO_WARNINGS 1
#include<iostream>
#include<map>
#include<algorithm>
using namespace std;
map<int, int> mp;
int main()
{
	int t;
	cin >> t;
	while (t--)
	{
		int n;
		cin >> n;
		while (n--)
		{
			int x;
			cin >> x;
			mp[x]++;
		}
		int maxx = 0;
		for (auto v : mp)
		{
			maxx = max(maxx, v.second);
		}
		int cnt = 0;
		int k = 0;
		for (auto v : mp)
		{
			if (v.second == maxx)
			{
				cnt++;
				if (cnt == 1)
					k = v.first;
			}
		}
		if (cnt == 1) cout << k << endl;
		else cout << "Nobody" << endl;
		mp.clear();
	}
	return 0;
>>>>>>> 19e6e5b827058c5c6a36316f97b5eaf1afdd567e
}